It was listed by Corvidae Antique. Sold pieces stay on Sellingantiques as a record of what has passed through, and the next one is rarely far away.
Corvidae Antique has dated this piece to the 1930s.

This is a really lovely piece and in very good vintage condition - no stones are missing and they are well matched in colour with little yellowing.
The piece is not hallmarked but has been acid tested as sterling silver. The clip is on a strong hinge which snaps shut nicely.
Size: Approx 5.2cm diameter.
Weight: 37.5g.
Corvidae Antique has dated this piece to the 1930s.
Hand picked jewellery from a friendly family business
You can view the stock and full dealer information on the Corvidae Antique Profile Page